Improvement in faucets



Patented Feb. 3. 18,74.

Faucets.

P. E. MALMSTROM & P. E. DUMMER.-

UNTTED STATES PATENT CJEFICE.

rETEn E. MALMsTRM AND PAUL E. DU'MMEE, or NEW Youn, N. Y.

IMPRQVEMENT IN FAUCETSB Specification forming part of Letters Patent No.147,060, dated February 3,1874; application filed January 16, 1874.

To all whom it may concern.' A

Be it known that we, PETER E. MALMv STRM and PAUL E. DUMMER, both of thecity, county, and State of New York, have invented a new and usefulImprovement in Stop- Cocks and we do hereby declare the following to bea full, clear, and exact description thereof, which will enable thoseskilled in the art to make and use the same, reference being had to theaccompanying drawing forming part of this specification, in whichdrawing- AFigure 1 represents a longitudinal section of our stop-cockwhen the same is closed. Fig. 2 is a rsimilar section ofthe same when itis open.

Similar letters indicate corresponding parts.

This invention consists in a stop-cock provided with a valve, the stemof which screws into a tubular -plug that is rmly screwed in the end ofthe shell or body of the cock, in combination with a "ca-p which coversthe end of the shell, and is provided with a small aperture for akey,'which serves to operate the stop-valve, while between the back ofthe valve and the inner end of the tubular plug is placed a sleeve ofindia-rubber, anda packing-ring of leather or other material, in such amanner that when the valve is.

opened, the packing-ring is pressed up against the end of the tubularplug, -and leakage at the side of the valve-stem is prevented, and atthe same time the liquid which passes through the stop-cock is preventedfrom coming in contact with the valve-stem. The valve is faced withleather or other suitable packing material, which prevents the liquidfrom coming` in contact with the metallic portion of the valve when thesame is closed.

In the drawing, the letter A designates the shell or body of ourstop-cock, which is, by preference, made of wood. This shell is providedwith a channel, a, at 'the inner end of which is formed the valve-seatb, which faces the valve-chamber B, and from this valvechamber extends`the discharge-spout C. In the valve-chamber is situated the valve D, thestem of which is provided with a screw-thread, c, that screws into atubular plug, E, which is firmly screwed into the open end of thevalvechamber. The outer end of the tubular plug E and of the valvelstemis protected by a cap,

F, which screws on the end of the shell A. This cap is provided with acentral hole, through which is inserted the key G, the end of which issquare, or otherwise so formed that it can be made to engage with thevalve stem, and that by means of said key the valve can be moved towardor from its seat. On the valve-stem are placed a sleeve, d, ofindia-rubber, and a packing-ring, e, of leather or other suitablematerial, so that, when the valve is screwed back to the position shownin Fig. 2, the packing-ring is firmly pressed` up against the inner endof the tubular plug, and thereby leakage on the sides of the valvestemis prevented. At the same time the elastic sleeve is iirmly compressed,and thereby the liquid is prevented from coming in contact with thevalve-stem. Vhen the valve is turned clear back as far as may bedesirable, the end of its stem strikes the inner surface of the cap F,and thereby the valve is prevented from being opened beyond the desiredpoint, and the elastic sleeve d cannot be subjected to an unduecompression. The cap F also forms a protect-ion for the end of the shellagainst the blows of the mallet, which serve to drive the same into akeg-or barrel.

The valve l) consists of a cup of metal, which is faced with apackingdisk, g, oi leather or other suitable material, so that, when thevalve is closed, the liquid which iills the channel a of the shell Adoes not come in contact with the metallic portion of the valve, andcorrosion is prevented.

By these means a stop-cock can be produced which is principally made ofwood, and which is cheap, durable, and very convenient in its operation.p

YVhat wc claimas new, and desire to secure by Letters Patent, is Thevalve D, provided with a screwstem, which fits in a tubular screw-plug,E, in co1n bination with a cap, F, elastic sleeve d, pack ing-ring c,and lshell A, all constructed and opf erating substantially in themanner shown and described.

l. E. MALMSTROM. PAUL E. DUMMER. litnesses W. HALTE,

E. F. KAsTENI-IUr-ER,

